Lijdwig maurer



UNITED STATES LUDWIG MAURER, or

y PATENT OFFICE.

LOVVILLE, ASSIGNOR OF ONE-lf'Ir-XLF TO ("IlRlSTlAN SOHEER, OF NEV YORK, N. Y.

ADJUSTABLE TRESTLE.

SPECIFICATION forming part of Letters `Patent No. 402,175, dated April 30, 1889. Application iiled November 28, 1888x Serial No. 292,073. (No model.)

4To all whom it may concern:

Be it known that I, LUDWIG MAURER, a citizen of the United States, residing at Lowville, in the county of Lewis and State of New York, have invented certain new and useful Improvements in Adj ustableSaw-I-lorses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to 4which it appertains to make and use the same, reference being hadto the accompanyingdrawe ings and letters of `reference marked thereon, which form a part of this specification.

Like letters refer to similanparts throughout the several views.

The invention relates to saw-horses, and has more particular reference to that class of saw-horses which are adjustable.

The object of the invention is to improve upon this class of devices and to provide a substantial and durable saw-horse so constructed as to render it possible to readily adjust the same to any desired height or length. When not in use, it may be folded within small compass for convenience in packing,y transportation, or storage.

To these ends, and to such others as the invention may relate, the same consists inthe peculiar combinations and in the novelP construction, arrangement, vand adaptation of parts, all as more fully hereinafter described, shown in the drawings, and then particularly defined in the claims.

In the accompanying drawings, Figure l is a side elevation of a saw-horse constructed in accordance with my invention. Fig. 2 is an end view of the same, partly in section. Fig. 8 is a perspective view of the saw-horse partially extended. Fig. et is a side view, in which the parts are shown as folded. Figs.

5 and 6 are details.

Referring by letter to the drawings, A represents the body of the saw-horse composed of two parts, a a', which are connected by means of a double Trail, o, one side of which rail is preferably made heavier than the opposite side, as is clearly shown in Fig. 5. The heavy portion of the rail is secured within a groove formed within the inner face of one of the body-sections, a. The adjacent face of the section a is provided with a groove, c,

adapted to loosely embrace the lighter edge of the rail b.

B is a cap, which may be constructed either of heavy sheet metal, or, if desired, it maybe 55 of cast-iron or other metal. This cap is adapted to t over the ends of the body of the sawhorse, as clearly shown in Fig. 3 of the drawings, and is formed with the rectangular chamber b4, to receive the two parts a and a of the 6o body of the horse, and with the tapered or outwardly-inclined legs or arms b5 below said chamber b4, the space between the arms b5 being adapt-ed to receive the upper ends of the legs C, soon to be described. The inner legs 65 or arms, b5, are connected by the horizontal bar or arm b, which serves to strengthen the legs b5 and prevent their being bent or inclined under strain on the legs O.

Beneath each corner of the body of the saw- 7o horse, with their upper ends pivotally connected by means of the transverse pivot or pin bl within suitable chambers or compartq ments formed within legs or arms b5 of the cap A,.B, is a leg, C, the lower inner side of 1 75 which is provided with a rack-bar, d. Ad-

j ustably attached tothe outer face of the leg O by means of a double T-rail, similar in all respects to the double T-rail used in connecting the adjacent sections of the body A, is -a 8o second part or section, C, which is provided with a bail, e, adapted to engage with the rack bar d upon the adjacent section of the leg.

Pivotally connected within the casting B beneath the body of the saw-horse, and se- 85 cured to the under side of one of the sections near its end, is a iifth leg, which is also made in two parts and adjustable, and is in all respects similar to the legs already described.

In order to secure the legs in position when 9o l. the saw-horse is inuse, and to prevent the same from possible displacement, hooks or braces are provided, as shown at g.' At the outer ends of the caps B sockets E are provided for the reception of the standard E ofl 9'5 the shelf F, which is hinged to the upper end of the standard, and is intended for use when the saw-horse is used for painting, or upon other occasions when the use of such a shelf is found to be either necessary or convenient. Ioo This standard E is removably inserted in the sockets E,land uponits rear is formed the lng e, which, when the standard is in pince, :is seen in Fig. 1, contacts with the top of the Gzip l1 :ind limits the downward movement ot' the stnndari'l :1nd also serves to steady said standard.

From the foregoing description the operation of the deviee will be nt once evident.

Having thus described my invention and set forth its merits, what I claim to be new, an d desire to secure by Letters Patent, is-

l. The combination, with the body, of the oep B, secured to one end thereof and formed with tapered legs b5, the inner ones ot which are connected by the horizontal bar D, and the legs tted in the spaces between eneh pair of legs and pivoted therein, substantially as i described.

2. The Combination, with the longitudinali)L extensible body and the cups B, secured 1o the outer ends thereof, of the legs C, pivot-- :Lily secured between downwilly-extending legs of said caps, and thelegs C', adjustable lengthwise on the legs C, iand the rack-bars and swinging bails for holding the legs in their adjusted positions, substantially as shown and described.

In testimony whereof l affix n1 y signature in presence of two witnesses.

LUDWIG )IAURER \\'it11esses:

FRANKLIN ll. IAloUGI-I, S. SNDERHAFT. 

